Dealing with that is a big part of my day to day. ;) My point being that for everything but performance critical use cases, generic UI automation works well.

Dealing with that is a big part of my day to day. ;) My point being that for everything but performance critical use cases, generic UI automation works well. So was trying to think of situations where 1) performance requirements were higher than UI automation could deliver & 2) performance requirements are low enough that it doesn't make more sense to rewrite the code in a more appropriate system.